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* Add support for 'image' volume driverMatthew Heon2022-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | We added the concept of image volumes in 2.2.0, to support inspecting an image from within a container. However, this is a strictly read-only mount, with no modification allowed. By contrast, the new `image` volume driver creates a c/storage container as its underlying storage, so we have a read/write layer. This, in and of itself, is not especially interesting, but what it will enable in the future is. If we add a new command to allow these image volumes to be committed, we can now distribute volumes - and changes to them - via a standard OCI image registry (which is rather new and quite exciting). Future work in this area: - Add support for `podman volume push` (commit volume changes and push resulting image to OCI registry). - Add support for `podman volume pull` (currently, we require that the image a volume is created from be already pulled; it would be simpler if we had a dedicated command that did the pull and made a volume from it) - Add support for scratch images (make an empty image on demand to use as the base of the volume) - Add UOR support to `podman volume push` and `podman volume pull` to enable both with non-image volume drivers Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* health check: add on-failure actionsValentin Rothberg2022-09-09
| | | | | | | | | | | | | | | | | | | | | | | | | | For systems that have extreme robustness requirements (edge devices, particularly those in difficult to access environments), it is important that applications continue running in all circumstances. When the application fails, Podman must restart it automatically to provide this robustness. Otherwise, these devices may require customer IT to physically gain access to restart, which can be prohibitively difficult. Add a new `--on-failure` flag that supports four actions: - **none**: Take no action. - **kill**: Kill the container. - **restart**: Restart the container. Do not combine the `restart` action with the `--restart` flag. When running inside of a systemd unit, consider using the `kill` or `stop` action instead to make use of systemd's restart policy. - **stop**: Stop the container. To remain backwards compatible, **none** is the default action. Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
* Merge pull request #15582 from dfr/freebsd-bindOpenShift Merge Robot2022-09-04
|\ | | | | Add support for FreeBSD volume mounts in specgen
| * libpod/define: Make TypeBind a platform-specific constantDoug Rabson2022-08-30
| | | | | | | | | | | | | | | | This allows us to redefine to the equivalent nullfs on FreeBSD. [NO NEW TESTS NEEDED] Signed-off-by: Doug Rabson <dfr@rabson.org>
* | Fix bind-mount-option annotation in gen/play kubeUrvashi Mohnani2022-09-01
|/ | | | | | | | | The format used for setting the bind-mount-options annotations in the kube yaml was incorrect and caused k8s to throw an error when trying to play the generated kube yaml. Fix the annotation format to match the rules of k8s. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* Fix #15499 already connected networkAlessandro Rossi2022-08-27
| | | | | | | | | | | Compat: Treat already attached networks as a no-op Applies only to containers in created state. Maintain error in running state. Co-authored-by: Alessandro Rossi <al.rossi87@gmail.com> Co-authored-by: Brent Baude <bbaude@redhat.com> Co-authored-by: Jason T. Greene <jason.greene@redhat.com> Signed-off-by: Alessandro Rossi <al.rossi87@gmail.com> Signed-off-by: Jason T. Greene <jason.greene@redhat.com>
* Run codespellDaniel J Walsh2022-08-25
| | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add support for containers.conf volume timeoutsMatthew Heon2022-08-23
| | | | | | | | | | | | | | | | | | | | | | | | Also, do a general cleanup of all the timeout code. Changes include: - Convert from int to *uint where possible. Timeouts cannot be negative, hence the uint change; and a timeout of 0 is valid, so we need a new way to detect that the user set a timeout (hence, pointer). - Change name in the database to avoid conflicts between new data type and old one. This will cause timeouts set with 4.2.0 to be lost, but considering nobody is using the feature at present (and the lack of validation means we could have invalid, negative timeouts in the DB) this feels safe. - Ensure volume plugin timeouts can only be used with volumes created using a plugin. Timeouts on the local driver are nonsensical. - Remove the existing test, as it did not use a volume plugin. Write a new test that does. The actual plumbing of the containers.conf timeout in is one line in volume_api.go; the remainder are the above-described cleanups. Signed-off-by: Matthew Heon <mheon@redhat.com>
* kube play: sd-notify integrationValentin Rothberg2022-08-10
| | | | | | | | | | | | | | | | | Integrate sd-notify policies into `kube play`. The policies can be configured for all contianers via the `io.containers.sdnotify` annotation or for indidivual containers via the `io.containers.sdnotify/$name` annotation. The `kube play` process will wait for all containers to be ready by waiting for the individual `READY=1` messages which are received via the `pkg/systemd/notifyproxy` proxy mechanism. Also update the simple "container" sd-notify test as it did not fully test the expected behavior which became obvious when adding the new tests. Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
* libpod: allow the notify socket to be passed programaticallyValentin Rothberg2022-08-10
| | | | | | | | | The notify socket can now either be specified via an environment variable or programatically (where the env is ignored). The notify mode and the socket are now also displayed in `container inspect` which comes in handy for debugging and allows for propper testing. Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
* resource limits for podsCharlie Doern2022-07-21
| | | | | | | | | | | | | | | | | | added the following flags and handling for podman pod create --memory-swap --cpuset-mems --device-read-bps --device-write-bps --blkio-weight --blkio-weight-device --cpu-shares given the new backend for systemd in c/common, all of these can now be exposed to pod create. most of the heavy lifting (nearly all) is done within c/common. However, some rewiring needed to be done here as well! Signed-off-by: Charlie Doern <cdoern@redhat.com>
* Update init ctr default for play kubeUrvashi Mohnani2022-07-20
| | | | | | | | | Update the init container type default to once instead of always to match k8s behavior. Add a new annotation that can be used to change the init ctr type in the kube yaml. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
* [CI:DOCS] Improve language. Fix spelling and typos.Erik Sjölund2022-07-11
| | | | | | | | | * Correct spelling and typos. * Improve language. Co-authored-by: Ed Santiago <santiago@redhat.com> Signed-off-by: Erik Sjölund <erik.sjolund@gmail.com>
* Merge pull request #14841 from Luap99/common-codeopenshift-ci[bot]2022-07-07
|\ | | | | use c/common code for resize and CopyDetachable
| * use c/common code for resize and CopyDetachablePaul Holzinger2022-07-06
| | | | | | | | | | | | | | | | | | Since conmon-rs also uses this code we moved it to c/common. Now podman should has this also to prevent duplication. [NO NEW TESTS NEEDED] Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* | Merge pull request #14501 from cdoern/podUTSopenshift-ci[bot]2022-07-06
|\ \ | |/ |/| podman pod create --uts support
| * podman pod create --uts supportcdoern2022-07-05
| | | | | | | | | | | | | | | | | | | | | | | | add support for the --uts flag in pod create, allowing users to avoid issues with default values in containers.conf. uts follows the same format as other namespace flags: --uts=private (default), --uts=host, --uts=ns:PATH resolves #13714 Signed-off-by: Charlie Doern <cdoern@redhat.com>
* | libpod: switch to golang native error wrappingSascha Grunert2022-07-05
| | | | | | | | | | | | | | | | | | We now use the golang error wrapping format specifier `%w` instead of the deprecated github.com/pkg/errors package. [NO NEW TESTS NEEDED] Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
* | Docker-compose disable healthcheck properly handledJake Correnti2022-07-05
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, if a container had healthchecks disabled in the docker-compose.yml file and the user did a `podman inspect <container>`, they would have an incorrect output: ``` "Healthcheck":{ "Test":[ "CMD-SHELL", "NONE" ], "Interval":30000000000, "Timeout":30000000000, "Retries":3 } ``` After a quick change, the correct output is now the result: ``` "Healthcheck":{ "Test":[ "NONE" ] } ``` Additionally, I extracted the hard-coded strings that were used for comparisons into constants in `libpod/define` to prevent a similar issue from recurring. Closes: #14493 Signed-off-by: Jake Correnti <jcorrenti13@gmail.com>
* podman pod create --memoryCharlie Doern2022-07-01
| | | | | | | | using the new resource backend, implement podman pod create --memory which enables users to modify memory.max inside of the parent cgroup (the pod), implicitly impacting all children unless overriden Signed-off-by: Charlie Doern <cdoern@redhat.com>
* Merge pull request #14449 from cdoern/podVolumesopenshift-ci[bot]2022-07-01
|\ | | | | podman volume create --opt=o=timeout...
| * podman volume create --opt=o=timeout...cdoern2022-06-09
| | | | | | | | | | | | | | add an option to configure the driver timeout when creating a volume. The default is 5 seconds but this value is too small for some custom drivers. Signed-off-by: cdoern <cdoern@redhat.com>
* | Merge pull request #14713 from Luap99/volume-pluginopenshift-ci[bot]2022-06-27
|\ \ | | | | | | add podman volume reload to sync volume plugins
| * | add podman volume reload to sync volume pluginsPaul Holzinger2022-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Libpod requires that all volumes are stored in the libpod db. Because volume plugins can be created outside of podman, it will not show all available plugins. This podman volume reload command allows users to sync the libpod db with their external volume plugins. All new volumes from the plugin are also created in the libpod db and when a volume from the db no longer exists it will be removed if possible. There are some problems: - naming conflicts, in this case we only use the first volume we found. This is not deterministic. - race conditions, we have no control over the volume plugins. It is possible that the volumes changed while we run this command. Fixes #14207 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* | | libpod: fix wait and exit-code logicValentin Rothberg2022-06-23
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit addresses three intertwined bugs to fix an issue when using Gitlab runner on Podman. The three bug fixes are not split into separate commits as tests won't pass otherwise; avoidable noise when bisecting future issues. 1) Podman conflated states: even when asking to wait for the `exited` state, Podman returned as soon as a container transitioned to `stopped`. The issues surfaced in Gitlab tests to fail [1] as `conmon`'s buffers have not (yet) been emptied when attaching to a container right after a wait. The race window was extremely narrow, and I only managed to reproduce with the Gitlab runner [1] unit tests. 2) The clearer separation between `exited` and `stopped` revealed a race condition predating the changes. If a container is configured for autoremoval (e.g., via `run --rm`), the "run" process competes with the "cleanup" process running in the background. The window of the race condition was sufficiently large that the "cleanup" process has already removed the container and storage before the "run" process could read the exit code and hence waited indefinitely. Address the exit-code race condition by recording exit codes in the main libpod database. Exit codes can now be read from a database. When waiting for a container to exit, Podman first waits for the container to transition to `exited` and will then query the database for its exit code. Outdated exit codes are pruned during cleanup (i.e., non-performance critical) and when refreshing the database after a reboot. An exit code is considered outdated when it is older than 5 minutes. While the race condition predates this change, the waiting process has apparently always been fast enough in catching the exit code due to issue 1): `exited` and `stopped` were conflated. The waiting process hence caught the exit code after the container transitioned to `stopped` but before it `exited` and got removed. 3) With 1) and 2), Podman is now waiting for a container to properly transition to the `exited` state. Some tests did not pass after 1) and 2) which revealed the third bug: `conmon` was executed with its working directory pointing to the OCI runtime bundle of the container. The changed working directory broke resolving relative paths in the "cleanup" process. The "cleanup" process error'ed before actually cleaning up the container and waiting "main" process ran indefinitely - or until hitting a timeout. Fix the issue by executing `conmon` with the same working directory as Podman. Note that fixing 3) *may* address a number of issues we have seen in the past where for *some* reason cleanup processes did not fire. [1] https://gitlab.com/gitlab-org/gitlab-runner/-/issues/27119#note_970712864 Signed-off-by: Valentin Rothberg <vrothberg@redhat.com> [MH: Minor reword of commit message] Signed-off-by: Matthew Heon <mheon@redhat.com>
* / golangci-lint: enable nolintlintPaul Holzinger2022-06-14
|/ | | | | | | | | | The nolintlint linter does not deny the use of `//nolint` Instead it allows us to enforce a common nolint style: - force that a linter name must be specified - do not add a space between `//` and `nolint` - make sure nolint is only used when there is actually a problem Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Merge pull request #14383 from jwhonce/wip/info_todoOpenShift Merge Robot2022-05-27
|\ | | | | Add Authorization field to Plugins for Info
| * Add Authorixation field to Plugins for InfoJhon Honce2022-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The Authorization field lists the plugins for granting access to the Docker daemon. This field will always be nil for Podman as there is no daemon. The field is included for compatibility. ```release-note NONE ``` [NO NEW TESTS NEEDED] Signed-off-by: Jhon Honce <jhonce@redhat.com>
* | Fix swagger model of `InspectPodResponse`Jakob Ahrer2022-05-26
|/ | | | | | | | | `net.IP` gets marshalled as `string` and not `[]uint8` [NO TESTS NEEDED] [NO NEW TESTS NEEDED] Signed-off-by: Jakob Ahrer <jakob@ahrer.dev>
* fix --init with /dev bind mountValentin Rothberg2022-05-23
| | | | | | | | | | The init binary until now has been bind-mounted to /dev/init which breaks when bind-mounting to /dev. Instead mount the init to /run/podman-init. The reasoning for using /run is that it is already used for other runtime data such as secrets. Fixes: #14251 Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
* play kube: service containerValentin Rothberg2022-05-12
| | | | | | | | | | | | | | | | | | | | Add the notion of a "service container" to play kube. A service container is started before the pods in play kube and is (reverse) linked to them. The service container is stopped/removed *after* all pods it is associated with are stopped/removed. In other words, a service container tracks the entire life cycle of a service started via `podman play kube`. This is required to enable `play kube` in a systemd unit file. The service container is only used when the `--service-container` flag is set on the CLI. This flag has been marked as hidden as it is not meant to be used outside the context of `play kube`. It is further not supported on the remote client. The wiring with systemd will be done in a later commit. Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
* Additional stats for podman infoBrent Baude2022-05-03
| | | | | | | | | | | | | | | In support of podman machine and its counterpart desktop, we have added new stats to podman info. For storage, we have added GraphRootAllocated and GraphRootUsed in bytes. For CPUs, we have added user, system, and idle percents based on /proc/stat. Fixes: #13876 Signed-off-by: Brent Baude <bbaude@redhat.com>
* pod: add exit policiesValentin Rothberg2022-05-02
| | | | | | | | | | | | | | | | | | | | | | | | Add the notion of an "exit policy" to a pod. This policy controls the behaviour when the last container of pod exits. Initially, there are two policies: - "continue" : the pod continues running. This is the default policy when creating a pod. - "stop" : stop the pod when the last container exits. This is the default behaviour for `play kube`. In order to implement the deferred stop of a pod, add a worker queue to the libpod runtime. The queue will pick up work items and in this case helps resolve dead locks that would otherwise occur if we attempted to stop a pod during container cleanup. Note that the default restart policy of `play kube` is "Always". Hence, in order to really solve #13464, the YAML files must set a custom restart policy; the tests use "OnFailure". Fixes: #13464 Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
* Merge pull request #14023 from rhatdan/kubeOpenShift Merge Robot2022-04-27
|\ | | | | Truncate annotations when generating kubernetes yaml files
| * Truncate annotations when generating kubernetes yaml filesDaniel J Walsh2022-04-27
| | | | | | | | | | | | | | | | | | | | | | | | Kubernetes only allows 63 characters in an annotation. Make sure that we only add 63 or less charaters when generating kube. Warn if containers or pods have longer length and truncate. Discussion: https://github.com/containers/podman/discussions/13901 Fixes: https://github.com/containers/podman/issues/13962 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* | enable gocritic linterPaul Holzinger2022-04-26
|/ | | | | | | | | | | | | | | | | | | | | | The linter ensures a common code style. - use switch/case instead of else if - use if instead of switch/case for single case statement - add space between comment and text - detect the use of defer with os.Exit() - use short form var += "..." instead of var = var + "..." - detect problems with append() ``` newSlice := append(orgSlice, val) ``` This could lead to nasty bugs because the orgSlice will be changed in place if it has enough capacity too hold the new elements. Thus we newSlice might not be a copy. Of course most of the changes are just cosmetic and do not cause any logic errors but I think it is a good idea to enforce a common style. This should help maintainability. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Revert "container,inspect: convert Entrypoint to array instead of a string"Aditya R2022-04-22
| | | | | | | | | | | | | | It seems this breaks older version of `podman-remote` users hence it looks like this patch would be a better candidate for podman `5.0` Problem * Client with `4.0` cannot interact with a server of `4.1` Plan this patch for podman `5.0` This reverts commit 0cebd158b6d8da1828b1255982e27fe9224310d0. Signed-off-by: Aditya R <arajan@redhat.com>
* Add support for checkpoint imageRadostin Stoyanov2022-04-20
| | | | | | | | | | | | | | | | | | | | | | | | This is an enhancement proposal for the checkpoint / restore feature of Podman that enables container migration across multiple systems with standard image distribution infrastructure. A new option `--create-image <image>` has been added to the `podman container checkpoint` command. This option tells Podman to create a container image. This is a standard image with a single layer, tar archive, that that contains all checkpoint files. This is similar to the current approach with checkpoint `--export`/`--import`. This image can be pushed to a container registry and pulled on a different system. It can also be exported locally with `podman image save` and inspected with `podman inspect`. Inspecting the image would display additional information about the host and the versions of Podman, criu, crun/runc, kernel, etc. `podman container restore` has also been extended to support image name or ID as input. Suggested-by: Adrian Reber <areber@redhat.com> Signed-off-by: Radostin Stoyanov <radostin@redhat.com>
* container,inspect: convert Entrypoint to array instead of a stringAditya R2022-04-08
| | | | | | | Convert container entrypoint from string to an array inorder to make sure there is parity between `podman inspect` and `docker inspect` Signed-off-by: Aditya R <arajan@redhat.com>
* Add 'Os' to be queried via 'version' outputJohn Matthews2022-03-29
| | | | Signed-off-by: John Matthews <jwmatthews@gmail.com>
* podman stats: improve cpu average calcPaul Holzinger2022-03-22
| | | | | | | We can just calculate the cpu percent for the time the container is running. There is no need to use datapoints. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Add support for --chrootdirsLStandman2022-03-14
| | | | Signed-off-by: LStandman <65296484+LStandman@users.noreply.github.com>
* bump go module to version 4Valentin Rothberg2022-01-18
| | | | | | | | | | | | | Automated for .go files via gomove [1]: `gomove github.com/containers/podman/v3 github.com/containers/podman/v4` Remaining files via vgrep [2]: `vgrep github.com/containers/podman/v3` [1] https://github.com/KSubedi/gomove [2] https://github.com/vrothberg/vgrep Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Merge pull request #12684 from mheon/remap_statesOpenShift Merge Robot2022-01-18
|\ | | | | Revamp Libpod state strings for Docker compat
| * Revamp Libpod state strings for Docker compatMatthew Heon2022-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve our compatibility with Docker by better handling the state strings that we print in `podman ps`. Docker capitalizes all states in `ps` (we do not) - fix this in our PS code. Also, stop normalizing ContainerStateConfigured to the "Created" state, and instead make it always be Created, with the existing Created state becoming Initialized. I didn't rename the actual states because I'm somewhat reticent to make such a large change a day before we leave for break. It's somewhat confusing that ContainerStateConfigured now returns Created, but internally and externally we're still consistent. [NO NEW TESTS NEEDED] existing tests should catch anything that broke. I also consider this a breaking change. I will flag appropriately on Github. Fixes RHBZ#2010432 and RHBZ#2032561 Signed-off-by: Matthew Heon <mheon@redhat.com>
* | Merge pull request #12870 from rhatdan/userns1OpenShift Merge Robot2022-01-18
|\ \ | |/ |/| Use PODMAN_USERNS environment variable when running as a service
| * Use PODMAN_USERNS environment variable when running as a serviceDaniel J Walsh2022-01-17
| | | | | | | | | | | | | | | | Fixes: https://github.com/containers/podman/issues/11350#issuecomment-1011562526 Also add inspect information about the idmappings if they exists. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* | Standardize on capatalized CgroupsDaniel J Walsh2022-01-14
|/ | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* use libnetwork from c/commonPaul Holzinger2022-01-12
| | | | | | | | The libpod/network packages were moved to c/common so that buildah can use it as well. To prevent duplication use it in podman as well and remove it from here. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Merge pull request #12733 from rhatdan/copyOpenShift Merge Robot2022-01-07
|\ | | | | Set volume NeedsCopyUp to false iff data was copied up
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